Did I move too fast?

I went out with this girl twice and she forgot something in my car of hers. and i was meant to drop it off at her place but something came up so i called her to let her know and she wanted to grab drinks well i was on the phone with her. I suggested that the next time we do something lets make it a date. she said no because she wants to able to be alone first due to her leaving a relationship recently and what not. I said to her i get it and she doesn't need to expalin herself to me.